Window and hardware therefor



Jan' 22, 1963 E. s. EPPs'rElN 3,074,126

WINDOW AND HARDWARE THEREFOR Filed April 27. 1960 lorzze Us.

Uited States Patent O 3,074,126 WWDGW A45111133 HARDWARE 'HEREFGR Eimer S. Eppstein, Highland Park, iii., assigner to iii-A- Wali Corporation, a corporation of illinois Filed Apr. 27, 19160, Ser. No. 24,992 2 Claims. (C. 20-52.2)

This invention relates to a window construction and more particularly to a window having a sash provided with hardware enabling removal of the sash and easy sliding movement of the sash without adjustment of the hardware and which requires little more raising force than to raise the weight of the sash.

An object of this invention is to provide a new and improved window and hardware therefor permitting easy sliding movement of the sash and removal from the window frame. M

Another object of the invention is to provide window hardware enabling mounting of a sash for easy raising and lowering movements and removal from the window frame, which avoids the use of cables, wires, ropes or weights, and in which the sash remains in a position of adjustment and may be easily raised with little more force than that required to lift the weight of the sash without any adjustments ofthe mechanism being required.

A further object of the invention is to provide a removable window sash having hardware which completely eliminates the need for a sash balance such as a spring and which may be utilized with window sash of different weight by merely increasing or decreasing the tension of a spring associated with the hardware and which eliminates the possibility of racking the sash in the frame as the sash always returns automatically to a horizontal position due to the floating nature of the hardware.

Further objects and advantages will become apparent from the following detailed description taken in connection with the accompanying drawings in which:

FlG. l is a vertical elevation of a window viewed from the inside out and with the upper window sash partly lowered and the lower window sash partly raised;

FiG. 2 is a fragmentary horizontal section on an enlarged scale taken generally along the line 2 2 in FIG. l; and

HG. 3 is a fragmentary vertical section taken generally along the line 3-3 in FG. 2.

While this invention is susceptible of embodiments in many diierent forms, there is shown in the drawings and will herein be described in detail an embodiment of the invention with the understanding that the present disclosure is to be considered as an exemplification of the principles of the invention and is not intended to limit the invention to the embodiment illustrated. The scope of the invention will be pointed out in the appended claims.

The window as shown in the drawings comprises a frame indicated generally at 1111 in which an upper sash 1192 and a lower sash 103 are slidably mounted. These window sash are of the double hung type and are slidably mounted between side jambs 104i and 1ii5 having associated therewith a pair of jamb liners 106 and 107, respectively. The jamb liners are formed of metal, plastic, or other suitable material having a relatively low coeihcient of friction. The upper window sash 102 has sash stiles 1138 and 109 which on their inner and outer faces engage the jamb liners 1% and 167. The lower window sash 163 has sash stiles 116 and 111 which on their outer and inner faces engage the jamb liners 106 and 107.

Means are provided for slidably and removably mounting both the upper window sash 102 and the lower window sash 163 in the window frame 101. This means 3,1112@ Patented dan. 22, 1963 comprises window hardware associated with each of the window sash and located in an outwardly opening groove in the sash stiles 109 and 111 respectively. This groove is indicated at 112 and opens out to an adjacent part of the jamb liner 107 with a space 123 being provided between the sash stiles 109 and 111 and the jamb liner, as shown in FIG. 2.

,The hardware includes a friction member 113 having an elongate U-shaped cross-section which is movably mounted in the groove 112 in the window sash stile. The base of the friction member 113 is engageable with the jamb liner 1117 and a pair of flanges or legs 114 and 115 of the friction member extend outwardly from the base and into the stile groove 112 to slidably mount the friction member in the groove. Each of the sash Stiles 109 and 111 have similar hardware with a description of one unit of the hardware being equally applicable to both. Further reference is made to the hardware associated with the sash stile 111.

A bracket 117 is mounted at the bottom of the stile groove 112 to extend vertically therein and has a bent kend 117a to which one end of a coil spring 116 is attached with the other end of the spring being attached to a lug 11nd struck out from the base of the friction member 113. The bracket 117 is mounted generally mid-way between the top and bottom of the window sash and the coil spring 116 is in tension and is disposed at an angle as shown in FIG. 3, whereby the spring normally urges the friction member upwardly and inwardly toward the bottom of the sash stile groove 112. A cam roller 11S extending between the ilanges 114, and of the friction member is positioned for engagement with an upwardly and outwardly inclined cam surface 119 formed in the bracket 117. y

The bracket 117 has a recess 119e, referred to hereinafter, immediately beneath the cam surface 119 and an outwardly extending hooked portion 11%. The hooked portion 11% coacts with a rivet 12% extending between the flanges 114i and 115 of the friction member and lies behind the hooked portion to maintain the friction member in assembled relation with the sash stile.

A finger button 122 -is formed at the upper end of the friction member 113 for obtaining manual movement of the friction member when desired. The head of the window frame is recessed to receive the linger button 122 associated with the upper window sash 1%2. A cover plate 121 is secured to the top edge of the sash and serves to close the end of the recess 112.

In utilization of the window sash having the hardware disclosed herein, a sash is maintained in a position of adjustment by the action of the tension spring 116 and the cam roller 118 and the cam 119. The spring 116 urges the friction member 113 upwardly and the coaction between the cam roller 11S and the cam 119 causes the friction member to be urged outwardly away from the sash stile into frictional engagement with the jamb liner 167. The force of the spring 116 is selected to be sufcient to maintain this wedging action and hold the sash in a position of adjustment. It will be seen that different weight of sash may be utilized with the same hardware, merely by proper selection of the force of spring 116. When a sash is to be raise/d, the sash is pushed upwardly and frictional forces between the friction member 113 and the jamb liner 107 result in drawing the friction member 113 downwardly relative to the sash stile with the result that the cam roller 118 may move down on the cam surface 119 to permit loose sliding engagement between the friction member and the jamb liner. When the window is released the action previously referred to takes place to hold the sash in adjusted position. This raising movement has required to loose engagement between the friction member 1134 and the jamb liner 167. Y

When the sash is to be lowered from a raised position, the sash is depressed and Vit is only necessary ,to press down on the sash with suiicient force to overcome the frictional engagement between the friction member 113 and the jamb lner'l? which is, at most, a relatively slippery engagement even when the friction member is cammed outwardly by engagement between the cam roller 118 and the cam 119.

For complete withdrawal of a window sash from the frame, the nger button 122 is depressed which causes the friction member to move downwardly relativeV to the window sash and the cam roller 118 tits into the recess 119a in the bracket 117 as caused by a component of force of the spring 116 urging the friction member inwardly towards the bottom of the sash groove 112. With this accomplished which results in complete withdrawal of the hardware into the sash stile groove 112, the sash can then be shifted horizontally into the space 123 between the sash and jarnb liner and the opposite sash stile can be withdrawn from the jamb liner 1%6 thereby allowing the sash to clear the window trim 124 and be removed from the bracket.

The hardware described herein may be assembled by associating the roller 11S and the rivet 126 with the flanges 114 and 115 of the friction member 113'. The bracket 117 is then attached to the bottom surface of the sash stile groove 112. Cover plate 121 is then attached to the top edge of the sash. The coil spring 116 is then attached to the friction member lug flea and the bracket end 117e and rivet 12b is engaged into the hook portion 11915 of the bracket and the coil spring urges the hardware into place in the sash stile groove 112.

I claim:

l. A window having a frame with a jamb and a win dow sash mounted in the jamb for up and down guided movement, said sash having a stile located in spaced relation to the adjacent jamb with a vertically extending groove therein opening toward said jamb, a friction member positioned in the space between the stile and i jarnb and extending into said groove, said member being in the form of a Lvl-shaped channel withy a base engageable with said jamb and legs within said groove, a bracket attached to theV stile in said groove with an outwardly and upwardly inclined cam surface intermediate the top and bottom of the sash, a cam roller on said friction member engageable with said cam surface whereby upwardV movement of the friction member results in movement thereof outwardly of the sash stile toward the jamb due to the cam roller moving up the cam member, a tension spring extended between the bracket and friction member positioned interiorly of the channel legs yieldably urging' the friction member upwardly and inwardly of the stile groove, an end of said friction member being positioned above the sash for manual engagement to depress the friction member and move the cam roller o the cam member whereby the spring pulls the friction member into the groove to reduce the effective width of the sash and the sash may be withdrawn from the window frame, and coacting means on the bracket and friction member holding said bracket and friction member in loosely assembled relation.

2. A window having a frame with a jamb and a window sash mounted in the jamb for up and down guided movement, said sash having a stile located in spaced relation to the adjacent jamb with a vertically extending groove therein opening toward said jamb, a friction member positioned in the space between the stile and jamb and extending into said groove, a bracket attached to the stile in said groove with an outwardly and upwardly inclined cam surface intermediate the top and bottom of the sash, a cam roller on said friction member engageable with said cam surface whereby upward movement of the friction member results in movement thereof outwardly of the sash stile toward the jarnb due to the cam roller moving up the cam member, a tension spring extended between the bracket. and friction member yieldably urging the friction member upwardly and inwardly of the stile groove, and an end of said friction member being positioned above the sash for manual engagement to depress the friction member and move the cam roller oi the cam member whereby the spring pulls the friction member into the groove to reduce the effective width of the sash and the sash may be withdrawn from the window frame.

References Cited in the le of this patent UNITED STATES PATENTS 170,131 Torrey et al Nov. 16, 1875 171,695 Payson Ian. 4, 1876 2,372,634 Breitenbach et al Mar. 27, 1945 2,595,595 McKay May 6, 1952 2,680,035 Amy et al June 1, 1954 2,772,451 Luke June 10, 1956 `2,903,756 Conville Sept. l5, 1959 FOREIGN PATENTS 793,634 Great Britain Apr` 23, 1958 

2. A WINDOW HAVING A FRAME WITH A JAMB AND A WINDOW SASH MOUNTED IN THE JAMB FOR UP AND DOWN GUIDED MOVEMENT, SAID SASH HAVING A STILE LOCATED IN SPACED RELATION TO THE ADJACENT JAMB WITH A VERTICALLY EXTENDING GROOVE THEREIN OPENING TOWARD SAID JAMB, A FRICTION MEMBER POSITIONED IN THE SPACE BETWEEN THE STILE AND JAMB AND EXTENDING INTO SAID GROOVE, A BRACKET ATTACHED TO THE STILE IN SAID GROOVE WITH AN OUTWARDLY AND UPWARDLY INCLINED CAM SURFACE INTERMEDIATE THE TOP AND BOTTOM OF THE SASH, A CAM ROLLER ON SAID FRICTION MEMBER ENGAGEABLE WITH SAID CAM SURFACE WHEREBY UPWARD MOVEMENT OF THE FRICTION MEMBER RESULTS IN MOVEMENT THEREOF OUTWARDLY OF THE SASH STILE TOWARD THE JAMB DUE TO THE CAM ROLLER MOVING UP THE CAM MEMBER, A TENSION SPRING EXTENDED BETWEEN THE BRACKET AND FRICTION MEMBER YIELDABLY URGING THE FRICTION MEMBER UPWARDLY AND INWARDLY OF THE STILE GROOVE, AND AN END OF SAID FRICTION MEMBER BEING POSITIONED ABOVE THE SASH FOR MANUAL ENGAGEMENT TO DEPRESS THE FRICTION MEMBER AND MOVE THE CAM ROLLER OFF THE CAM MEMBER WHEREBY THE SPRING PULLS THE FRICTION MEMBER INTO THE GROOVE TO REDUCE THE EFFECTIVE WIDTH OF THE SASH AND THE SASH MAY BE WITHDRAWN FROM THE WINDOW FRAME. 